Neutrino Masses and Leptogenesis in Left–Right Symmetric Models: A Review From a Model Building Perspective

Frontiers in Physics

Pritimita, Prativa¹  Patra, Sudhanwa²  Sarkar, Utpal³  Hati, Chandan³ 

[1] Center of Excellence in Theoretical and Mathematical Sciences, Siksha ‘O’ Anusandhan University, India;Department of Physics, Indian Institute of Technology Bhilai, India;Laboratoire de Physique Corpusculaire, Centre National de la Recherche Scientifique/IN2P3 UMR 6533, France

关键词: Left right symmetry;    neutrino mass;    leptogenesis;    neutrinoless double beta decay;    low scale seesaw;   

DOI  :  10.3389/fphy.2018.00019

学科分类：物理（综合）

来源: Frontiers

【 摘 要 】

In this review, we present several variants of left-right symmetric models in the context of neutrino masses and leptogenesis. In particular, we discuss various low scale seesaw mechanisms like linear seesaw, inverse seesaw, extended seesaw and their implications to lepton number violating process like neutrinoless double beta decay. We also visit an alternative framework of left-right models with the inclusion of vector-like fermions to analyze the aspects of universal seesaw. The symmetry breaking of left-right symmetric model around few TeV scale predicts the existence of massive right-handed gauge bosons $W_R$ and $Z_R$ which might be detected at the LHC in near future. If such signals are detected at the LHC that can have severe implications for leptogenesis, a mechanism to explain the observed baryon asymmetry of the Universe. We review the implications of TeV scale left-right symmetry breaking for leptogenesis.

【 授权许可】

CC BY